Finding the Fourth Proportional to 1,631,543,138,615.80, 2,251,536,531,109.40 and 889,966,135,262.40
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Solution
The fourth proportional to 1,631,543,138,615.80, 2,251,536,531,109.40 and 889,966,135,262.40 is: 1,228,157,084,889.31
Step by Step Solution
- Step 1: Write the proportion equation
1,631,543,138,615.80 : 2,251,536,531,109.40 = 889,966,135,262.40 : x - Step 2: Convert to fraction form
1,631,543,138,615.80/2,251,536,531,109.40 = 889,966,135,262.40/x - Step 3: Cross multiply
1,631,543,138,615.80x = 2,251,536,531,109.40 × 889,966,135,262.40 - Step 4: Simplify right side
1,631,543,138,615.80x = 2,003,791,264,993,543,232,421,888 - Step 5: Solve for x
x = 2,003,791,264,993,543,232,421,888/1,631,543,138,615.80 - Step 6: Final answer
x = 1,228,157,084,889.31
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.